Synonyms
- balmy
- barmy [chiefly British]
- bats
- batty
- bedlam
- bonkers
- brainsick
- bughouse [slang]
- certifiable
- crackbrained
- cracked
- crackers
- crackpot
- cranky [dialect]
- crazed
- crazy
- cuckoo
- daffy
- daft
- demented
- deranged
- fruity [slang]
- gaga
- haywire
- insane
- kooky
- kookie
- loco [slang]
- loony
- looney
- loony tunes
- looney tunes
- lunatic
- mad
- maniacal
- maniac
- mental
- meshuga
- meshugge
- meshugah
- meshuggah
- moonstruck
- nuts
- nutty
- psycho
- psychotic
- scatty [chiefly British]
- screwy
- unbalanced
- unhinged
- unsound
- wacko
- whacko
- wacky
- whacky
- wud [chiefly Scottish]
Dictionary Entries Near non compos mentis
Cite this Entry
“Non compos mentis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/non%20compos%20mentis. Accessed 22 Nov. 2024.
Copy CitationMedical Definition
non compos mentis
adjective
non com·pos men·tis
ˌnän-ˌkäm-pə-ˈsment-əs, ˌnōn- 
: not of sound mind
Legal Definition
non compos mentis
adjective
non com·pos men·tis
ˈnän-ˈkäm-pəs-ˈmen-təs
: not of sound mind : lacking mental ability to understand the nature, consequences, and effect of a situation or transaction
Etymology
Latin, literally, not having mastery of one's mind
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